2(z+7)-(7-2z)=3z

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Solution for 2(z+7)-(7-2z)=3z equation:


Simplifying
2(z + 7) + -1(7 + -2z) = 3z

Reorder the terms:
2(7 + z) + -1(7 + -2z) = 3z
(7 * 2 + z * 2) + -1(7 + -2z) = 3z
(14 + 2z) + -1(7 + -2z) = 3z
14 + 2z + (7 * -1 + -2z * -1) = 3z
14 + 2z + (-7 + 2z) = 3z

Reorder the terms:
14 + -7 + 2z + 2z = 3z

Combine like terms: 14 + -7 = 7
7 + 2z + 2z = 3z

Combine like terms: 2z + 2z = 4z
7 + 4z = 3z

Solving
7 + 4z = 3z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-3z' to each side of the equation.
7 + 4z + -3z = 3z + -3z

Combine like terms: 4z + -3z = 1z
7 + 1z = 3z + -3z

Combine like terms: 3z + -3z = 0
7 + 1z = 0

Add '-7' to each side of the equation.
7 + -7 + 1z = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 1z = 0 + -7
1z = 0 + -7

Combine like terms: 0 + -7 = -7
1z = -7

Divide each side by '1'.
z = -7

Simplifying
z = -7

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